EP 1208635 B1 20051102 - CONTROL OF AN ELECTRICAL RELUCTANCE MACHINE
Title (en)
CONTROL OF AN ELECTRICAL RELUCTANCE MACHINE
Title (de)
ANSTEUERUNG EINER ELEKTRISCHEN RELUKTANZ MASCHINE
Title (fr)
COMMANDE D'UNE MACHINE ELECTRIQUE A RELUCTANCE
Publication
Application
Priority
- GB 0003213 W 20000817
- GB 9919345 A 19990817
- GB 9924203 A 19991014
Abstract (en)
[origin: WO0113508A1] An electrical machine comprises a rotor without windings, a stator having an armature winding (24, 25) and a field winding (10) for generating a magnetomotive force in a direction extending transversely of the magnetomotive force generated by the armature winding. An electronic circuit (40) is provided for controlling the current in the armature winding (24, 25) such that periods in which a magnetomotive force in one direction is associated with a first current pulse alternate with periods in which a magnetomotive force in the opposite direction is associated with a second current pulse. A position sensor is provided for monitoring the rotational position of the rotor and for supplying output signals dependent on the speed of rotation of the rotor. Furthermore a control system (32) supplies control signals to the circuit (40) to control the current in the armature winding (24, 25). In order to enhance the performance at high speed, the control signals are produced in response to sensor output signals which provide an advanced indication of the rotational position of the rotor. Furthermore, in order to prevent oscillation of the rotor on start-up, the control signals supplied to the circuit (40) during an initial start-up period are each produced after a time delay as compared with the production of the control signals over subsequent cycles of rotation during acceleration of the rotor. This can be achieved with simple on/off control of armature and field switching devices, so that the control circuitry can be produced at relatively low cost.
IPC 1-7
IPC 8 full level
H02P 1/16 (2006.01); H02P 25/08 (2006.01)
CPC (source: EP US)
H02P 1/16 (2013.01 - EP US); H02P 1/163 (2013.01 - EP US); H02P 25/08 (2013.01 - EP US); H02P 25/0925 (2016.02 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0113508 A1 20010222; AT E258342 T1 20040215; AT E307422 T1 20051115; AT E308820 T1 20051115; AT E314751 T1 20060115; AU 6707900 A 20010319; AU 6708800 A 20010313; AU 6708900 A 20010313; AU 7018400 A 20010313; DE 60007878 D1 20040226; DE 60007878 T2 20041014; DE 60023317 D1 20060302; DE 60023317 T2 20060831; DE 60023714 D1 20051208; DE 60023714 T2 20060727; DE 60025224 D1 20060202; DE 60025224 T2 20060907; DK 1208643 T3 20060306; EP 1208635 A1 20020529; EP 1208635 B1 20051102; EP 1208636 A1 20020529; EP 1208636 B1 20040121; EP 1208642 A1 20020529; EP 1208642 B1 20051019; EP 1208643 A1 20020529; EP 1208643 B1 20051228; ES 2251401 T3 20060501; ES 2252043 T3 20060516; ES 2252052 T3 20060516; US 6646406 B1 20031111; US 6788020 B1 20040907; US 6850029 B1 20050201; US 6867561 B1 20050315; WO 0113507 A1 20010222; WO 0113511 A1 20010222; WO 0115310 A1 20010301
DOCDB simple family (application)
GB 0003214 W 20000817; AT 00954719 T 20000817; AT 00954729 T 20000817; AT 00954730 T 20000817; AT 00958761 T 20000817; AU 6707900 A 20000817; AU 6708800 A 20000817; AU 6708900 A 20000817; AU 7018400 A 20000817; DE 60007878 T 20000817; DE 60023317 T 20000817; DE 60023714 T 20000817; DE 60025224 T 20000817; DK 00958761 T 20000817; EP 00954719 A 20000817; EP 00954729 A 20000817; EP 00954730 A 20000817; EP 00958761 A 20000817; ES 00954719 T 20000817; ES 00954729 T 20000817; ES 00958761 T 20000817; GB 0003197 W 20000817; GB 0003201 W 20000817; GB 0003213 W 20000817; US 4843202 A 20020520; US 4850102 A 20020625; US 4850902 A 20020426; US 4926302 A 20020426